Aircraft Maintenance Scheduling Algorithm for Task Prioritization

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Solution Overview

Problem

Current aircraft maintenance planning systems lack efficiency in scheduling maintenance tasks, often resulting in inadequate utilization of manpower and resources, leading to inefficiencies and potential delays in completing critical maintenance items.

Innovation Solution

A system and method that utilize a web-based application server and database to automatically generate an optimized bill of work for aircraft maintenance stations by prioritizing tasks, aggregating them by airplane, and scheduling them based on available manpower and time slots, ensuring that critical maintenance items are completed within the allotted time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional manual scheduling methods are used for aircraft maintenance tasks, then flexibility in task assignment is maintained, but productivity and resource utilization efficiency deteriorate

Engineering Contradiction:

Improvemaintenance task completion efficiencyVSAvoidscheduling system complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system enables automatic self-scheduling of maintenance tasks by algorithms that independently prioritize tasks, allocate resources, and generate schedules without continuous human intervention. The scheduling system automatically processes maintenance requirements, assigns technicians and equipment, and optimizes time slots based on predefined criteria and real-time data.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical scheduling processes with an automated computer-based system that uses algorithms and software to perform task prioritization, resource allocation, and schedule generation. This substitution of manual operations with automated computational processes dramatically improves productivity while managing system complexity through standardized procedures.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Loss of time

If maintenance tasks are scheduled without prioritization, then ease of operation is maintained, but loss of time increases due to inefficient resource allocation

Engineering Contradiction:

Improvewasted time in maintenance schedulingVSAvoidscheduling operation simplicity

Core Design Contradiction:

Loss of timeVSEase of operation

Solution Approach 1:

The system performs preliminary prioritization of maintenance tasks before scheduling, automatically categorizing and ranking tasks based on criticality, deadlines, and resource requirements. This preliminary classification enables more efficient subsequent scheduling decisions and reduces time wasted on ad-hoc prioritization during the scheduling process.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The scheduling system dynamically adjusts scheduling parameters such as task priority weights, resource availability thresholds, and time slot allocations based on changing maintenance requirements and resource conditions. This parameter optimization enables the system to adapt to different scenarios while maintaining operational efficiency and reducing time loss.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If manual resource allocation is used for maintenance technicians and equipment, then adaptability to changing conditions is maintained, but productivity deteriorates due to inadequate utilization

Engineering Contradiction:

Improvemanpower utilization efficiencyVSAvoidflexibility in resource allocation

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The scheduling system incorporates continuous feedback loops that monitor resource utilization, task completion status, and changing maintenance requirements. This feedback enables the system to dynamically adjust schedules, reallocate resources, and optimize productivity while maintaining adaptability to new conditions through automated recalibration based on real-time data.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system implements dynamic scheduling that automatically adjusts task assignments and resource allocations in response to changing conditions such as technician availability, equipment status, and maintenance priority changes. This dynamic approach maintains both high productivity through optimized utilization and adaptability through automatic reconfiguration of the schedule.

Inventive Principle:

Principle #15Dynamics

4Manufacturing precision

If comprehensive task analysis is performed for scheduling, then manufacturing precision of schedules is improved, but loss of time increases due to detailed processing requirements

Engineering Contradiction:

Improveschedule accuracyVSAvoidtime required for schedule generation

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The scheduling process is segmented into distinct automated stages including task identification, prioritization, resource matching, time slot allocation, and schedule generation. This segmentation allows the system to process comprehensive information systematically through specialized sub-routines, achieving high schedule accuracy while minimizing total processing time through parallel and sequential optimization of each segment.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8849690B1Optimized bill of work for aircraft maintenance based on task prioritization and time slot proximity analysis

Publication Date: 2014.09.30 AMERICAN AIRLINES INC

AI summary

A system and method for aircraft maintenance planning according to which an optimized bill of work is generated for a line maintenance station at which one or more airplanes are parked or are expected to be parked.